Golf-ball.



N0.7|6,290. Patented Dec. I6, |902.

E. s cHuLTz.

A .soLF BALL.

(Applieatim md Jun'elv, 1902.)

C 2a @Mm :M: uonms PETERS cajPHoToL-mu, wAsHmsTaN. rr4 c.

UNrTED STATES Fries,

.PATENT EMMET SCHULTZ, OF ARLINGTON," NEW JERSEY, ASSIGNOR TO THE ARLINGTON COMPANY, A CORPORATION OF NEW JERSEY.

BALL.

SPECIFICATION forming part of Letters Patent No. 716,290, dated December 15, 1902.

Application iilecl (l une 17, 1902.

['0 @AZZ whom, t may concern:

Be it known that I, EMMET SCHUL/rz, a eilizen of the United States, residing in Arlington, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Golf-Balls, of'which the following is a specification.

This invention relates to playing-balls, especially those used in the game of golf; and its object is to reduce expense of making theV ball, While increasing the efliciency and durability thereof. t

The accompanying drawing shows, partly in section, a golf-ball made in accordance with my improvements.

The ball comprises a core 1, a'shell 2,-of softer yielding material, thereon, Aand a hard springy shell 3, which forms the cover ofthe ball. The core 1 is formed by granulating cork A and mixing it with celluloid solution, collodion,or a derivative of pyroxylin B. This compound material after hardening is sti, hard, and springy and has other qualities whereby it is well adapted for the core or tilling of a golf-ball. Moreover, it can be made at such low cost as to reduce materially the expense of making the ball. Upon this core isapplied a sphere 2, of soft rubber, preferbly solid vulcanized rubber, and upon the latter are welded together hemispheres of gutta-percha or other plastic material to form a shell 3, said shell holding the soft rubber in astate of highV compression upon the hard core. One important advantage of my irnprovement resides in the stability of the core at the operation of compressing the shell upon the ball, since the core is not affected by the heat incident to the welding, and hence the center piece as a whole is not liable to soften and change its shape, and hence get out of center under the great welding pressure. Soft rubber and the compound core material may be otherwise combined in making a golf-ball p Within the scope of my invention. l

In forming the core the compressible cork and cellnloid mixture is preferably hardened under great pressure, so that it is ot' smaller bulk than if the pressure were not applied, and it will be understood'that at the operation of welding or forming the shell upon the ball the core is again subjected to great pres- Serial No. 112.107. (No model.)

sure, which is maintained While the entire ball hardens, so that the cork and the celluloid, collodion, or pyroxylin with which it is mixed are permanently retained under compression, and the mass therefore has a tendency to expand the shell, and hence to preserve the spherical form thereof and aid theplatter in promptly recovering its form when distorted by a blow, therebyincreasing the liveliness of the ball. The resistance of the cork to further pressure is, however, so great as not to be unduly affected by a light blow,iand hence the ball is found to be excellent for putting. It will be further understood that the pyroxylin exists in the core in the form cfa continuous irregular honeycomb or agglomeration of cells, and is hence quite stiff and resisting, especially since it is backed by the particles of compressed cork, and conduces to the playing qualities of the ball. Any shock received by the ball is transmitted by the hard pyroxylin to the cork, which bein gin a state of high compression is effective to cushion the blow and by its reaction to aid the liight of the ball.

In using the term cork or granulated cork I mean to include all substitutes therefor-such, for instance, as sawdust-0r several comminuted substances may be incorporated with the pyroxylin. Cork and rubber or cork, rubber, and sawdust may be used or any other mixture of light material. In some cases I have used with good results fifty per cent., by weight, of cork and fifty per cent. of celluloid in plastic condition.

. Having described my invention, I claiml. In a playing-ball, the combination of a hard, springy sphere consisting of granulated cork incorporated With a derivative of pyroxylin and in a state of high compression; a soft elastic sphere; and a gutta percha cover.

2. In a playing-ball, the combination with a sphere consisting of granulated cork incorporated with pyroxylin and in astatleof high compression, of a sphere of soft rubber, and a hard cover. Y

3. In a playing-ball, the combination with a hard, springy center piece consisting of cork incorporated with pyroxylin and in a state of high compression, of a soft-rubber IOO sphere thereon, and a hard shell of plastic material upon'said soft rubber.

4. A playing-ball comprising a spherical core of cork mixed with celluloid and in a state of high compression, a thick soft-rubber shell thereon, and a shell of gutta-percha upon said rubber.

5. A playing-ball comprising a spherical core of cork mixed with Celluloid and in a state of high compression; a thick soft-rubber 1o shell thereon; and a shell of gutta-pelcha; said soft rubber being in a state of compression between said shell and said core.

EMMET SCHULTZ.

Witnesses:

B. C. STICKNEY, JOHN O. SEIFERT. 

